Seán Baker, CORBA Distributed Objects Using Orbix, Addison-Wesley, 1997, ISBN 0201-92475-7.
There are many other books on CORBA. Most of them seem to be long on propaganda (for distributed computing in general as well as CORBA) and short on actual CORBA programming issues and examples. Nevertheless it would probably be useful to have at least one other book. Watch this spot for suggestions.